Lustre is not the only scalable parallel file system in the HPC world but, during it’s 10 year lifespan, it still dominates in eight out of the top ten HPC systems in the world and is in more than 70% of the Top500. Lustre is open source so it is not tied to a single vendor and has strong support in the community. One of the main reasons for Lustre’s dominance is its inherent scaling and the impressive roadmap for future performance scaling.